If you don't have Alby extension set up, you can go to the Settings page in Nostrudel, then the section for Lightning, and there will be a "Connect Wallet" option that will have NWC as one of the connection options.
If you have Alby extension, Nostrudel will default to using that instead, and you can connect your wallet to your Alby extension via NWC.
If you have Alby extension, Nostrudel will default to using that instead, and you can connect your wallet to your Alby extension via NWC.